A Difference Engine Built With LEGO� Pieces

Before the day of computers and pocket calculators all mathematics was done by hand. Great effort was expended to compose trigonometric and logarithmic tables for navigation, scientific investigation, and engineering purposes. In the mid-19th century, peo

Reviewed by sheaman42 Feb 09 2006, 10:57am ( 57 reviews ) • woz.org

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Rated by SkeelsyT on Mar 15 2009, 9:31pm

havent made one of these since i was five!
Rated by about28 on Feb 22 2009, 1:54pm

Babbage machine... using LEGO blocks! That's insane!
Rated by Tracer-Bullet on Jan 28 2009, 7:54pm

I would just buy a calculator. But hey, to each his own.
Rated by GerardGrey on Nov 13 2008, 9:42am

fantastic.
Rated by lekahe on Aug 25 2008, 9:09am

Building A Calculating Machine Using LEGO� Pieces
Rated by deepblueaudio on Jul 15 2008, 11:14am

Certainly one of the best ways to use LEGO. Good Job.
Rated by madhollywood on Jun 21 2008, 5:30pm

Perhaps the coolest calculator ever. So cool in fact you should check it out even if don't like calculators, math or even numbers. Simply amazing!
Rated by thallium205 on Apr 20 2008, 11:38pm

incredible!
Rated by gigibanana4 on Apr 13 2008, 4:56am

cool!
Rated by tree-lights on Apr 09 2008, 4:45pm

So, I'm pretty sure this is one of the cooler things I have seen.

Installing is Easy!